Panasonic UJ20 Series Operating instructions

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How to use the UJ20 external inputs/outputs and
modes / Troubleshooting
Page Title
1How to use the UJ20 external inputs/outputs and modes /
Troubleshooting
2 Emergency stop of UV irradiation – 1: EMERGENCYsignal
3 Emergency stop of UV irradiation -2: STOP signal
4 Emergency stop of UVirradiation -3: [EMISSION] SW
5 UVirradiation by an external signal (foot SW) (when using one head)
6 UVirradiation by an external signal (foot SW) (when using one head)
7 How to use BUSY signals
8 How to use BUSY signals (Connection of UVirradiation indicators)
9 START signal modes: PULSE/STATUS
10 UVirradiation starting by SW-on and stopping at a preset time
11 UVirradiation while holding SW on and stopping at the preset time
12 Collective/individual lighting control of multiple heads (ALL/MULTI)
13 Collective lighting control of multiple heads [ALL]-[PULSE]
14 Collective lighting control of multiple heads [ALL]-[STATUS]
15 Individual lighting control of multiple heads [MULTI]-[PULSE]
16 Individual lighting control of multiple heads [MULTI]-[STATUS]
17 Lighting control of the heads in pairs using two foot SWs
18 UVirradiation only by signal inputs regardless of time setting
19 UVirradiation only by signal inputs regardless of time setting: [MNL]
irradiation
20 UV irradiation pattern switching
21 UV irradiation pattern switching
22 Remedies for outputs of [ALARM] and [ERROR] warning signals
23 UVirradiation is impossible although [ERROR] is not displayed
24
Precautions for simultaneous input of the START signal to multiple UJ20
controllers
25 UJ20 inputs/outputs (I/O terminal arrangement)
26 UJ20 inputs/outputs (I/O specifications)

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Emergency stop of UV irradiation - 1:
EMERGENCY signal
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Use the [EMER] signal to stop the UV irradiation of UJ20.
Terminals [11] and [12] are shorted by a shorting bar as a factory default.
Connect an emergency stop SW between these terminals so that the signal input can be
turned off when the SW is pressed, and a forced stop of UV irradiation will be possible even
in the middle of the process.
1: While the [EMER] signal input is off, the [READY] signal is off,
and UV irradiation is not possible.
2: If the [EMER] input is turned off during UV irradiation,
it will stop, and the [ERROR] signal will be output.
Connect an emergency
stop SW between
[EMER]=[11] and
[COM]=[12] by B-contact.

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Emergency stop of UV irradiation -2: STOP signal
Use the [STOP] signal terminal [9] to stop the UV irradiation of UJ20.
When the signal is input between terminals [9] and [12], the UV
irradiation will stop, and the [ERROR] signal will be turned on.
[ERROR] is output because the UV irradiation has not completed.
Input [STOP] again or hold down the [SET] key to release
the [ERROR] signal.
COM
ERROR
START
STOP
T
START
UV
STOP
ERROR
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Emergency stop of UV irradiation -3:
[EMISSION] SW
Operation
Press the [EMISSION] SW on the panel to stop the UV
irradiation.
When the UV irradiation is stopped by the [EMISSION] SW,
[ERROR] is output because the UV irradiation has not
completed.
Hold down the [SET] key to release the [ERROR] signal.
[EMISSION]
T
READY
UV
START
EMISSION
ERROR
START
COM
READY
EMER.
ERROR

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UV irradiation by an external signal (foot SW)
(when using one head)
When using a foot SW or other external signal to start the UV irradiation, use the [START]
input terminal for easier connection.
When using only one LED head, connect the head to [CH1], and connect the foot SW
between terminals [1] and [12].
Don’t remove the shorting bar between terminals [11] and [12].
(Since the bar is used for an emergency stop signal, the UV irradiation is disabled if the
connection is off.)
Connect the SW
between [START1]=[1]
and [COM]=[12]
by A-contact.
SW
Foot SW
UV irradiation
Preset UV
irradiation time
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UV irradiation by an external signal (foot SW)
(when using one head)
When using a foot SW or other external signal to start UV irradiation,
use the [START] input terminal for easier connection.
UV irradiation starts when the [START] signal is received
while the [READY] signal is on.
During UV irradiation, the [READY] signal is off,
and the [START] signal input is ignored.
START
COM
READY
EMER.
T
READY
UV
START
T
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How to use BUSY signals
The [BUSY] output signals stay on during UV irradiation by the corresponding heads from
CH1 to CH4.
The BUSY1 to BUSY4 signals are output for heads CH1 to CH4 independently.
Even if the output is set to 0% by the irradiation pattern setting, these signals are output.
These signals can be used for controlling the indicator that is lit during UV irradiation by
each head.
T1
STOP
UV-1
BUSY-1
START
T2UV-2
BUSY-2
READY
ERROR
START
COM
READY
BUSY-1
BUSY-2
BUSY-3
BUSY-4
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How to use BUSY signals
(Connection of UV irradiation indicators)
UJ20 has a 5 V DC (250 mA) external power supply.
Use this power supply and BUSY1 to BUSY4 in combination, and UV
irradiation indicators can be directly connected without any external
devices.
If the head cable length exceeds 2 m, use the BUSY signals to install
UV irradiation indicators in an easily viewable location for safety
purposes.
The external power supply is 5 V DC, and the maximum allowable load
current is 250 mA in total. The maximum allowable load current for
each BUSY signal is 100 mA.
+5 V DC
BUSY-1
BUSY-2
BUSY-3
BUSY-4
COM
-+
BUSY-1
BUSY-2
BUSY-3
BUSY-4
5-24 V DC
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START signal modes: PULSE/STATUS
There are two START signal modes: [PULSE] and [STATUS].
[PULSE]: UV irradiation starts when an external START pulse signal is input.
When the preset time has elapsed, UV irradiation stops.
[STATUS]: While an external START signal is input, UV irradiation continues.
When the START signal is turned off within the preset time, the irradiation stops.
When the preset time has elapsed, irradiation stops even if the START signal is still on.
T
T
T
START
UV
START
UV
[PULSE]
[STATUS]
PULSE
STATUS
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UV irradiation starting by SW-on and stopping at
a preset time
UV irradiation starts when the foot SW is stepped on (momentary input = no
need for keeping the SW stepped on), and stops when the preset time has
elapsed.
[PULSE]: UV irradiation starts when an external START pulse signal is
input.
When the preset time has elapsed, UV irradiation stops.
(1) The UV irradiation starts when the [START] signal is received while the [READY] signal is on.
The UV irradiation starts when the [START] signal is input, and stops when the preset time has
elapsed.
(2) When the UV irradiation stops, the [READY] signal is turned on.
* During UV irradiation, the [READY] signal is off, and the [START] signal input is ignored.
* When the [STOP] signal is input, the UV irradiation stops, and the [ERROR] signal is turned on.
PULSE
T1
STOP
UV-1
BUSY-1
START
READY
ERROR
START
COM
READY
BUSY-1
STOP
ERROR
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UV irradiation while holding SW on and stopping at
the preset time
The UV irradiation continues while the foot SW is stepped on (alternate
input), and stops when the preset time has elapsed.
When the foot SW is turned off, the UV irradiation stops.
[STATUS]: While an external START signal is input, the UV irradiation
continues.
When the START signal is turned off within the preset time, the irradiation
stops.
(1) The UV irradiation starts when the [START] signal is received while the [READY] signal is on.
The UV irradiation starts when the [START] signal is input, and stops when the preset time has
elapsed.
(2) When the UV irradiation stops, the [READY] signal is turned on.
* During UV irradiation, the [READY] signal is off, and the [START] signal input is ignored.
* When the [STOP] signal is input, the UV irradiation stops, and the [ERROR] signal is turned on.
STATUS
START
COM
READY
BUSY-1
STOP
ERROR
T1
STOP
UV-1
BUSY-1
START
READY
ERROR
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Collective/individual lighting control of multiple heads
(ALL/MULTI)
Setting
UJ20 has four channel connectors for connection of up to four heads.
There are two modes for controlling signals to the channels (lighting of the
heads): [ALL] and [MULTI]
The two modes are switched on UJ20.
[ALL]
Mode to light multiple heads collectively with one external signal
[MULTI]
Mode to light multiple heads individually with respective external signals
[ALL] [MULTI]

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Collective lighting control of multiple heads
[ALL]-[PULSE]
[ALL]
Mode to light multiple heads collectively with one external signal
[PULSE]
Mode to start irradiation by turning on the START signal
with a short input pulse
(1) UV irradiation continues for a preset time after the START signal is
turned on.
(2) The READY signal stays off during irradiation.
(3) The READY signal is turned on when all irradiation processes complete.
(4) The next irradiation can be started. [ALL] [PULSE]
T1
STOP
UV-1
BUSY-1
START
READY
ERROR
T2
UV-2
BUSY-2
T3
UV-3
BUSY-3
T4
UV-4
BUSY-4
START
COM
READY
BUSY-1
BUSY-2
BUSY-3
BUSY-4
STOP
Setting

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Collective lighting control of multiple heads
[ALL]-[STATUS]
[ALL]
Mode to light multiple heads collectively with one external signal
[STATUS]
Mode to continue UV irradiation while the START signal
input stays on.
(UV irradiation continues while a foot SW stays on and stops
when the SW is turned off.)
[ALL] [STATUS]
T1
STOP
UV-1
BUSY-1
START
READY
ERROR
T2
UV-2
BUSY-2
T3
UV-3
BUSY-3
T4
UV-4
BUSY-4
START
COM
READY
BUSY-1
BUSY-2
BUSY-3
BUSY-4
STOP
(1) UV irradiation continues for a preset time within the period where
the START signal is kept on.
(2) The READY signal stays off during irradiation.
(3) The READY signal is turned on when all irradiation processes complete.
(4) The next irradiation can be started.
* When the START signal is turned off, the UV irradiation stops even
within the preset time.
(In this case, the ERROR signal is not turned on.)
Setting

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Individual lighting control of multiple heads
[MULTI]-[PULSE]
[MULTI]
[PULSE]
[MULTI]
Mode to light multiple heads individually with respective external signals
When the [EMISSION] SW is pressed, the heads simultaneously start UV irradiation.
[PULSE]
Mode to start irradiation by turning on the START signal
with a short input pulse
START-1
COM
READY
BUSY-1
BUSY-2
BUSY-3
BUSY-4
START-2
START-3
START-4
STOP
T1
UV-1
BUSY-1
START-1
UV-2
BUSY-2
START-2
T2
T3
UV-3
BUSY-3
START-3
T4
UV-4
BUSY-4
START-4
READY
STOP
ERROR
(1) The heads corresponding to the START1 to 4 signals start the UV
irradiation at a preset time.
(2) The BUSY signals corresponding to the heads are turned on.
* The READY signal is off while all heads 1 to 4 are lit.
* While any of the heads 1 to 4 is ready to start irradiation, the READY
signal is on.
(3) When the STOP signal is input, all heads stop the UV irradiation, and
the ERROR signal is turned on.
Setting

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Individual lighting control of multiple heads
[MULTI]-[STATUS]
[MULTI]
[STATUS]
[MULTI]
Mode to light multiple heads individually with respective external signals
When the [EMISSION] SW is pressed, the heads simultaneously start UV irradiation.
[STATUS]
Mode to continue the UV irradiation while the START signal input stays on.
(Individual heads continue UV irradiation while the respective foot
SWs stay on and stop the irradiation when the SWs are turned off.)
START-1
COM
READY
BUSY-1
BUSY-2
BUSY-3
BUSY-4
START-2
START-3
START-4
STOP
T1
UV-1
BUSY-1
START-1
UV-2
BUSY-2
START-2
T2
T3
UV-3
BUSY-3
START-3
T4
UV-4
BUSY-4
START-4
READY
STOP
ERROR
(1) The heads continue UV irradiation for a preset time within the period where the
SWs corresponding to the START1 to 4 signals are kept on.
* When the START signal is turned off, the UV irradiation stops even within the
preset time.
(In this case, the ERROR signal is not turned on.)
(2) The BUSY signals corresponding to the heads are turned on.
* The READY signal is off while all heads 1 to 4 are lit.
* While any of the heads 1 to 4 is ready to start irradiation, the READY signal is on.
(3) When the STOP signal is input, all heads stop the UV irradiation, and the
ERROR signal is turned on.
Setting

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Lighting control of the heads in pairs using
two foot SWs
In the [MULTI] mode, the heads (channels) can be turned on individually
by the respective external inputs.
The heads (channels) can also be controlled in pairs separately using two foot
SWs if foot SW 1 is assigned to CH1 and CH2, and SW 2 to CH3 and CH4.
[MULTI]
FSW-1
COM
READY
BUSY-1
BUSY-2
BUSY-3
BUSY-4
FSW-2
STOP
T1
UV-1
BUSY-1
FSW-1
T3
UV-3
BUSY-3
FSW-2
READY
STOP
ERROR
T1
UV-2
BUSY-2
T4
UV-4
BUSY-4
Setting

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UV irradiation only by signal inputs regardless
of time setting
UV irradiation can be freely controlled using only external signals regardless
of the UV irradiation time setting by UJ20.
[MNL]: Manual mode
(1) Manual setting of the manual mode
Hold down the [SET] SW, and the mode will change from [AUTO] to
[MNL].
Press the [EMISSION] SW to start UV irradiation, and press it again to
end the irradiation.
The target CH (head) can be selected by pressing the corresponding
[CH] switch.
The [AUTO] mode is usually used.
(2) Setting of the manual mode by using an external signal
When the [MNL.] external signal is turned on, the mode changes from [AUTO] to [MNL].
In the [MNL] mode, while the external START signal [START-1/2/3/4] is on, the
corresponding CH (head) continues UV irradiation.
Note:
* In [MNL] mode, the manually set UV irradiation intensity is applied.
* The mode can be switched to [MNL] when the [READY] signal is on.
* The [READY] signal stays off during irradiation in [MNL] mode.
* The [STOP] signal input is invalid during irradiation in [MNL] mode. Therefore, turn off the
[EMER.] signal input to make an emergency stop of the UV irradiation.
Reference:
There is no limit on the irradiation time for the [MNL] mode while it is limited to 999 seconds
for the [AUTO] mode.
MNL.
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UV irradiation only by signal inputs regardless of
time setting: [MNL] irradiation
If the mode is switched to manual mode by using the [MNL.] signal, the UV
irradiation can be freely controlled using only external signals regardless of
the UV irradiation time set by UJ20.
(1) Input the [MNL] signal to switch to manual mode. When the mode
is switched, the [READY] signal will be turned off.
(2) While the [START-1/2/3/4 ] signal stays on, the corresponding
CH (head) continues UV irradiation.
(3) When the [MNL] signal is turned off, the mode will be switched to
[AUTO], and the [READY] signal will be turned on.
MNL.
START-1
COM
READY
BUSY-1
BUSY-2
BUSY-3
BUSY-4
START-2
START-3
START-4
MNL.
UV-1
BUSY-1
START-1
UV-2
BUSY-2
START-2
UV-3
BUSY-3
START-3
UV-4
BUSY-4
START-4
READY
MNL.
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UV irradiation pattern switching
The UV irradiation patterns (TYPE00 to 15) of UJ20 can be switched with
external signals [TYPE Cng1 to 4].
The irradiation pattern can be switched by changing the input status
of the [TYPE Cng1 to 4] signals while the [READY] signal is on.
Maintain the status of the irradiation pattern signals depending on
the target irradiation pattern.
The irradiation patterns are switched by setting the signal status of
[TYPE Cng1 to 4] as shown in the table below.
COM
READY
TYPE Cng1
TYPE Cng2
TYPE Cng3
TYPE Cng4
COM
Signal TYPE Cng4 TYPE Cng3 TYPE Cng2 TYPE Cng1
PinNo.8765
00 OFF OFF OFF OFF
01 OFF OFF OFF ON
02 OFF OFF ON OFF
03 OFF OFF ON ON
04 OFF ON OFF OFF
05 OFF ON OFF ON
06 OFF ON ON OFF
07OFFONONON
08 ON OFF OFF OFF
09 ON OFF OFF ON
10 ON OFF ON OFF
11 ON OFF ON ON
12 ON ON OFF OFF
13 ON ON OFF ON
14 ON ON ON OFF
15 ON ON ON ON
Pattern No.
Note:
* When the pattern is set to [TYPE00], the [TYPE] manually set on
the UJ20 panel takes precedence.
* When the external signal [TYPE Cng1/2/3/4] is input, the [TYPE] set
by the external signal takes precedence.
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